import  csv
import numpy as np
def read_class_data(csv_name):
    with open(csv_name, 'r')as file:
        reader =csv.reader(file)
        next(reader)
        return list(reader)
class1_data =read_class_data('class1.csv')
class2_data =read_class_data('class2.csv')
class3_data =read_class_data('class3.csv')
all_class_data =class1_data +class2_data +class3_data
all_claaa_scores=[]

for data in all_class_data:
    all_claaa_scores.append(int(data[2]))
scores_np=np.array(all_claaa_scores)

print(scores_np)